Billboard and Point have wrong location in 2D vs 3D
- Dominant language
- JavaScript
- Stars
- 15.7k
- Forks
- 3.9k
- Avg merge
- 4d 6h
- Merged PRs (30d)
- 34
Description
When switching from 2D to 3D, billboards and points that are clamped to ground will move to a different position.
Possibly the same issue as https://github.com/AnalyticalGraphicsInc/cesium/issues/5041
Sandcastle example: https://sandcastle.cesium.com/#c=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
Browser: Google Chrome 78.0.3904.17 (Official Build) dev (64-bit)
Operating System: Windows 10
Contributor guide
Research direction
Run the linked Sandcastle example in Chrome and compare clamped billboards and points while switching between 2D and 3D. Read the related issue #5041 and trace the code paths involved in ground-clamped positioning. Done means the objects retain the same geographic position across the 2D-to-3D switch.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript
- Domain
- computer-graphics
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100